What is the Difference Between Vocal Nodule and Polyp?

Vocal nodules and polyps are both growths that can form on the vocal folds, but they have some differences in their characteristics and causes:

Vocal Nodules:

• Also known as Singer's Nodes or Screamer's Nodes.
• Appear on both sides of the vocal cords.
• Often caused by repeated misuse of the vocal cords, such as speaking or singing for long periods without a break, yelling, or using an unnaturally low frequency.
• Can be thought of as calluses.
• Usually disappear when the vocal abuse stops.

Vocal Polyps:

• Can occur on one or both sides of the vocal cord.
• Tend to be larger and more protuberant than nodules.
• Can appear in different shapes and sizes, such as swelling or a bump, a stalk-like growth, or a blister-like lesion.
• May result from an initiating acute phonatory injury or chronic irritation.
• Caused by factors that include gastroesophageal reflux, untreated hypothyroid states, chronic laryngeal allergic reactions, or chronic inhalation of irritants, such as industrial fumes or cigarette smoke.

Both vocal nodules and polyps can cause symptoms such as hoarseness, breathiness, neck pain, rough or scratchy voice, and a sensation of a lump in the throat. Treatment options may include medical intervention, surgery, or behavioral intervention, such as voice therapy.

Comparative Table: Vocal Nodule vs Polyp

Vocal nodules and polyps are both benign and noncancerous lesions that form on the vocal folds, causing a decrease in voice quality, hoarseness, or a breathy voice. Here is a table summarizing the differences between vocal nodules and polyps:

Vocal nodules are typically bilateral and located at the junction of the anterior and middle third of the vocal folds. They are caused by chronic vocal abuse, such as yelling, shouting, or singing loudly. On the other hand, vocal polyps are usually unilateral and found at the mid-third of the membranous vocal cords. They often result from an acute injury, such as shouting at a sporting event. Both nodules and polyps can be treated with voice therapy, voice rest, surgery, or medication, depending on the severity and specific case.